Technologies for isolated communications between network functions

Abstract

Examples described herein include shared reserved memory regions providing communications among network functions for isolation among network slices. In some examples, circuitry is configured to: based on receipt of a first request, allocate a first region of one or more memory regions of a memory to store data reserved for access by a first network function of a radio access network (RAN) and shared for access by a second network function of the RAN and allocate a processor to perform operations of the first network function, wherein the first network function and the second network function perform operations of Open Radio Access Network (ORAN) components.

What is claimed is: 
     
         1 . An apparatus comprising:
 an input/output (I/O) interface;   circuitry coupled to the I/O interface, the circuitry configured to:   based on receipt of a first request, allocate a first region of one or more memory regions of a memory to store data reserved for access by a first network function of a radio access network (RAN) and shared for access by a second network function of the RAN and   allocate a processor to perform operations of the first network function, wherein the first network function and the second network function perform operations of Open Radio Access Network (ORAN) components.   
     
     
         2 . The apparatus of  claim 1 , wherein:
 the first request is to request isolation of a network slice of the first network function.   
     
     
         3 . The apparatus of  claim 1 , wherein:
 the first network function comprises an ORAN Centralized Unit (CU), Distributed Unit (DU), or RAN Intelligent Controller (RIC) and   the second network function comprises a NextG User Plane Function (UPF) or Access and Mobility Management Function (AMF).   
     
     
         4 . The apparatus of  claim 1 , wherein:
 the first network function comprises an Open Radio Access Network (ORAN) Centralized Unit (CU) and   the second network function comprises an ORAN Distributed Unit (DU), or NextG User Plane Function (UPF) or Access and Mobility Management Function (AMF).   
     
     
         5 . The apparatus of  claim 1 , wherein:
 the first network function is to provide a service consistent with 3rd Generation Partnership Project (3GPP) fifth-generation wireless technology (5G) Release 15 (2018) or 3GPP NextG Core (5GC) in Release 16 (2020).   
     
     
         6 . The apparatus of  claim 1 , wherein:
 the first network function is associated with a first tenant and   the second network function is associated with the first tenant.   
     
     
         7 . The apparatus of  claim 1 , wherein:
 the circuitry is to provide telemetry data indicative of memory region accesses and memory bandwidth utilized by the first network function to indicate isolation of the first region for the first network function and   based on a received command, the circuitry is to allocate a second region of one or more memory regions of the memory and also release reservation of the first region to store data for the first network function and second network function of the RAN.   
     
     
         8 . At least one machine readable medium comprising a plurality of instructions, that in response to being executed by a processor, cause the processor to:
 issue a first request to a memory device to isolate a radio access network (RAN) slice by reserving access to memory and compute resources for a first network function and a second network function of the RAN slice and   issue a second request to the memory device to isolate a second RAN slice by reserving access to the memory and compute resources for a third network function and fourth network function of the second RAN slice, wherein the reserved access to the memory and the compute resources for the first and second RAN slices are different and wherein the first network function and the second network function perform operations of Open Radio Access Network (ORAN) components.   
     
     
         9 . The at least one machine readable medium of  claim 8 , wherein:
 the first network function comprises an Open Radio Access Network (ORAN) Centralized Unit (CU), Distributed Unit (DU), or RAN Intelligent Controller (RIC) and   the second network function comprises a NextG User Plane Function (UPF) or Access and Mobility Management Function (AMF).   
     
     
         10 . The at least one machine readable medium of  claim 8 , wherein:
 the first network function comprises an Open Radio Access Network (ORAN) Centralized Unit (CU) and   the second network function comprises an ORAN Distributed Unit (DU), or NextG User Plane Function (UPF) or Access and Mobility Management Function (AMF).   
     
     
         11 . The at least one machine readable medium of  claim 8 , wherein:
 the first network function is associated with a first tenant and   the second network function is associated with the first tenant.   
     
     
         12 . The at least one machine readable medium of  claim 11 , wherein:
 the third network function is associated with a second tenant and   the fourth network function is associated with the second tenant.   
     
     
         13 . The at least one machine readable medium of  claim 8 , comprising a plurality of instructions, that in response to being executed by a processor, cause the processor to:
 based on receipt of telemetry data indicative of memory region accesses and memory bandwidth utilized by the first network function, allocate a second region of one or more memory regions of the memory and also release reservation of the first region to store data for the first network function and second network function of the RAN.   
     
     
         14 . A method comprising:
 isolating a radio access network (RAN) slice by reserving access to memory and compute resources for a first network function and a second network function of the RAN slice and   isolating a second RAN slice by reserving access to the memory and compute resources for a third network function and fourth network function of the second RAN slice, wherein the reserved access to the memory and the compute resources for the first and second RAN slices are different and wherein the first network function and the second network function perform operations of Open Radio Access Network (ORAN) components.   
     
     
         15 . The method of  claim 14 , wherein:
 the first network function comprises an Open Radio Access Network (ORAN) Centralized Unit (CU), Distributed Unit (DU), or RAN Intelligent Controller (RIC) and   the second network function comprises a NextG User Plane Function (UPF) or Access and Mobility Management Function (AMF).   
     
     
         16 . The method of  claim 14 , wherein:
 the first network function comprises an Open Radio Access Network (ORAN) Centralized Unit (CU) and   the second network function comprises an ORAN Distributed Unit (DU), or NextG User Plane Function (UPF) or Access and Mobility Management Function (AMF).   
     
     
         17 . The method of  claim 14 , wherein:
 the first network function is associated with a first tenant,   the second network function is associated with the first tenant,   the third network function is associated with a second tenant, and   the fourth network function is associated with the second tenant.   
     
     
         18 . The method of  claim 15 , comprising:
 based on telemetry data indicative of memory region accesses and memory bandwidth utilized by the first network function, allocating a second region of one or more memory regions of the memory and releasing reservation of the first region to store data for the first network function and second network function of the RAN.   
     
     
         19 . The method of  claim 15 , comprising:
 based on telemetry data indicative of memory region accesses and memory bandwidth utilized by the first network function, allocating a region of one or more memory regions of a second memory to store data for the first network function and the second network function of the RAN and releasing reservation of the first region to store data for the first network function and second network function of the RAN.   
     
     
         20 . The method of  claim 15 , wherein:
 the first network function provides a service consistent with 3rd Generation Partnership Project (3GPP) fifth-generation wireless technology (5G) Release 15 (2018) or 3GPP NextG Core (5GC) in Release 16 (2020).